<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<body>
<script>
// Ensure correct behavior of canvas with path stroke shadow.

var canvas = document.createElement('canvas');
document.body.appendChild(canvas);
canvas.setAttribute('width', '700');
canvas.setAttribute('height', '700');
var ctx = canvas.getContext('2d');

ctx.beginPath();
ctx.moveTo(300, 300);
ctx.lineTo(300, 50);
ctx.bezierCurveTo(200, 40, 75, 150, 30, 30);
ctx.quadraticCurveTo(250, 75, 50, 300);
ctx.shadowOffsetX = 350;
ctx.shadowColor = 'rgba(255, 20, 0, 0.5)';
ctx.shadowBlur = 0;
ctx.strokeStyle = 'rgba(0, 0, 255, 1)';
ctx.lineWidth = 30;
ctx.closePath();
ctx.stroke();

ctx.beginPath();
ctx.moveTo(300,650);
ctx.lineTo(300,400);
ctx.bezierCurveTo(200, 390, 75, 500, 30, 380);
ctx.quadraticCurveTo(250, 425, 50, 650);
ctx.shadowOffsetX = 350;
ctx.shadowColor = 'rgba(255, 0, 0, 0.5)';
ctx.shadowBlur = 30;
ctx.strokeStyle = 'rgba(0, 0, 255, 1)';
ctx.lineWidth = 30;
ctx.closePath();
ctx.stroke();

var colorTolerance = 2;
function checkPixelWithTolerance(x, y, rgbNOTa) {
    data = ctx.getImageData(x, y, 1, 1).data;
    for (i = 0; i < 3; i++)
        assert_approx_equals(data[i], rgbNOTa[i], colorTolerance);
    if(rgbNOTa.length == 4)
        assert_not_equals(data[3], rgbNOTa[3]);   
}

var testScenarios = [
    ['Verify solid shadow 1', 650, 300, [255, 20, 0]],
    ['Verify solid shadow 2', 650, 50, [255, 20, 0]],
    ['Verify solid shadow 3', 380, 30, [255, 20, 0]],
    ['Verify solid shadow 4', 400, 40, [255, 20, 0]],
    
    ['Verify blurry shadow 1', 640, 640, [255, 0, 0, 255]],
    ['Verify blurry shadow 2', 650, 400, [255, 0, 0, 255]],
    ['Verify blurry shadow 3', 380, 380, [255, 0, 0, 255]],
    ['Verify blurry shadow 4', 350, 380, [255, 0, 0, 255]],

];

generate_tests(checkPixelWithTolerance, testScenarios);

</script>
</body>
